Gradual, sequential, replacement of one community by another
Ecological Succession
A species that has a large effect on its environment relative to its abundance
Keystone species
central cause of environmental crisis
population
process by which the environment produces resources
Ecosystem Services
messages in the public interest disseminated by the media without charge with the object of raising awareness
Public Service announcement
Occurs where there is no soil
Primary Succession
Eats sea urchins
Otters
harvesting species from the wild faster than natural populations can recover
overexploitation
control of climate and disease
Regulating
the acronym for anthropogenic change
HIPPOC
Late successional community that has reached equilibrium
Climax Community
Ecological role
Niche
exposure to toxic chemicals in the air, water or food
pollution
minerals and raw materials are examples of this type of service
Provisional
accidentally catching marine species while catching desired species
Bycatch
colonization of new sites by communities of organisms
Primary Succession
Organism eaten by sea urchins, that provides shelter for many small animals.
Sea kelp
small amounts of pollutants become concentrated in organisms
biomagnification
sailing is an example of this type of service
Cultural
pioneer species
R
occurs after the abandonment of farmland
Secondary Succession
One species becomes two
Speciation
the largest cause of extinction
habitat destruction
autotrophs producing food is an example of this type of service
Supporting
mercury building up in fish tissue is an example of this
Biomagnification